AU718549B2 - Mold for pressing and molded glass substrate for computer me mory by using it - Google Patents
Mold for pressing and molded glass substrate for computer me mory by using it Download PDFInfo
- Publication number
- AU718549B2 AU718549B2 AU64322/96A AU6432296A AU718549B2 AU 718549 B2 AU718549 B2 AU 718549B2 AU 64322/96 A AU64322/96 A AU 64322/96A AU 6432296 A AU6432296 A AU 6432296A AU 718549 B2 AU718549 B2 AU 718549B2
- Authority
- AU
- Australia
- Prior art keywords
- mold
- molded glass
- glass plate
- computer memory
- glass substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000011521 glass Substances 0.000 title claims description 25
- 239000000758 substrate Substances 0.000 title claims description 18
- 238000003825 pressing Methods 0.000 title description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 description 10
- 239000010410 layer Substances 0.000 description 5
- 229940090044 injection Drugs 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- -1 ion nitrogen ion Chemical class 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
- C03B11/086—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0254—Physical treatment to alter the texture of the surface, e.g. scratching or polishing
- C23C16/0263—Irradiation with laser or particle beam
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73913—Composites or coated substrates
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73921—Glass or ceramic substrates
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/02—Press-mould materials
- C03B2215/08—Coated press-mould dies
- C03B2215/14—Die top coat materials, e.g. materials for the glass-contacting layers
- C03B2215/24—Carbon, e.g. diamond, graphite, amorphous carbon
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
- C03B2215/44—Flat, parallel-faced disc or plate products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
- C03B2215/45—Ring or doughnut disc products or their preforms
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Magnetic Record Carriers (AREA)
- Liquid Crystal (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Manufacturing Optical Record Carriers (AREA)
Description
-1- P/00/011 Regulation 3.2
AUSTRALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Invention Title: MOLD FOR PRESSING AND MOLDED GLASS SUBSTRATE FOR COMPUTER MEMORY BY USING IT The following statement is a full description of this invention, including the best method of performing it known to me: GH&CO REF: P24564-A:RPW:RK IA TITLE OF THE INVENTION Mold for pressing and molded glass substrate for computer memory by using it.
BACKGROUND OF THE INVENTION This invention relates to a mold for pressing glass plates for hard disks for computer memory and molded glass substrates for computer memory pressed by using it.
Up to the present, generally hard disks made of aluminum substrate coated with magnetic materials were used. But because many grinding processes are required to obtain a specified surface roughness on the aluminum substrate, production costs are high.
In consideration of the above, it would be advantageous if at least preferred embodiments of this invention provided press molds that are able to obtain a specified surface roughness, and a glass substrate for computer memory devices pressed by the press molds, both at low cost.
BRIEF DESCRIPTION OF THE INVENTION 20 According to the present invention, there is provided a method of manufacturing a molded glass plate substrate for a computer memory, the method comprising the steps of: *o preparing a metallic mold by ion implanting the 0 surface of said mold to a depth of at least 0.5gm thereby 25 to modify said surface and coating the modified surface with a carbon layer of thickness at least 0.1 to 1gm; and molding said glass plate substrate using said mold.
According to this invention, although the metallic mold coated with graphite or amorphous type carbon has required flatness, an ion nitrogen ion) is injected onto the surfaces of the super-hard mold material just before carbon coating, and the surface layer of the mold is modified.
Due to this process, it becomes possible to increase the adhesiveness of the carbon onto the mold and the life Sof the mold can be greatly extended.
Also, the surface is treated so that the roughness reaches 2/1000-8/1000 mm.
Further, according to this invention, glass plates for glass substrates for computer memory are molded by using the metallic mold on which the surface has been modified by injecting ion before coating with carbon of graphite or amorphous diamond types.
The invention will be described below with reference to the exemplary embodiments and the accompanying drawings, in which: Fig. 1 shows a glass substrate for computer memory molded by using a metallic mold according to this invention.
The embodiment of this invention is described in detail as follows. Herein, a metallic mold made of super-hard material, having a surface roughness of more than 8/1000mm is modified in forming Gauss distribution on the surface layer by ion injection such as a Nitrogen atomic ion in advance of coating with graphite or amorphous diamond-type carbon.
Namely, an ion-injected layer is shaped to a depth of at least 0.5 kgm of the ~surface of a super-hard alloy by ion injection, and then carbon coat is provided in a depth 0.1-l m on the ion-injected layer, and the last layer of the surface is flattened so as to keep the roughness in the range of 2/1000-8/1000 mm.
g
L
By applying the metallic mold according to this invention, it becomes possible to mold a glass substrate 1 for computer memory shown in the drawings.
*o In the ion-injection method applying high frequency discharging (105-107Hz) it becomes possible to inject ion to a depth of at least 0.5gm into the surface layer of the metallic mold by keeping ionizing current at 1 OmA, ion irradiation at 1 x 102 ions/cm 2 (100 doses), temperature at 300-500 0 C, and time for 10-40 seconds, and then the metallic mold is coated with an amorphous diamond type of carbon as much as a thickness of 0.1-1 m on the ionized layer.
For example, if pressing about 63mmp glass plate by applying the metallic mold according to this invention, at first the glass plate preshaped in a circular disk is heated to the softening temperature of glass material, then the heated glass plate is charged in the metallic mold heated to the same temperature, and then pressed. After pressing, the pressed 2 _f glass plate is gradually cooled over 15-20 minutes and cooled down to room temperature. Despite repeating 100,000 shots of this operation, peeling off of the carbon coat from the surface of the metallic mold was never seen. The effectiveness of this invention is recognized by the actual results.
The reason that the life of the metallic mold was considerably extended appears to be that the fatigue of the metallic mold is decreased by keeping glass temperature and mold temperature at the same degree, together with the improved peeling off property of the metallic mold owing to the ion radiation.
As described above in detail, in this invention, in advance of carbon coating, the shaped surface of the metallic mold is modified in the surface layer thereof by ion-implantation, then it becomes possible to greatly increase the adhesiveness of carbon coat onto the metallic mold and to extend the life of the metallic mold, and further to eliminate the polishing step of the pressed products owing to the high-graded flatness of the molded glass plates.
After obtaining glass substrate by using the mold S according to this invention, the surface of the glass substrate is coated with magnetic materials.
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprising" is used in the sense of "including", i.e. the features specified may be associated with further features in various embodiments of the invention.
Claims (3)
1. A method of manufacturing a molded glass plate substrate for a computer memory, the method comprising the steps of: preparing a metallic mold by ion implanting the surface of said mold to a depth of at least 0.5JLm thereby to modify said surface and coating the modified surface with a carbon layer of thickness at least 0.1 to lJm; and molding said glass plate substrate using said mold.
2. A method of manufacturing a molded glass plate substrate for a computer memory substantially as hereinbefore described with reference to the accompanying 15 drawings.
3. A molded glass plate substrate for a computer memory manufactured according to the method of claim 1 or 2. 20 Dated this 1st day of February 2000 YASUAKI SAKAMOTO S: By his Patent Attorneys GRIFFITH HACK
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52058595A | 1995-08-29 | 1995-08-29 | |
| US08/520585 | 1995-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU6432296A AU6432296A (en) | 1997-03-06 |
| AU718549B2 true AU718549B2 (en) | 2000-04-13 |
Family
ID=24073252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU64322/96A Ceased AU718549B2 (en) | 1995-08-29 | 1996-08-28 | Mold for pressing and molded glass substrate for computer me mory by using it |
Country Status (13)
| Country | Link |
|---|---|
| JP (2) | JP3275091B2 (en) |
| KR (1) | KR100385257B1 (en) |
| CN (1) | CN1102470C (en) |
| AU (1) | AU718549B2 (en) |
| CA (1) | CA2184206C (en) |
| DE (1) | DE19634974A1 (en) |
| FR (1) | FR2738236B1 (en) |
| GB (1) | GB2304736B (en) |
| IL (1) | IL119144A0 (en) |
| MY (1) | MY115041A (en) |
| NL (1) | NL1003899C2 (en) |
| SG (1) | SG47172A1 (en) |
| ZA (1) | ZA967329B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124995C (en) * | 1997-07-30 | 2003-10-22 | 保谷株式会社 | Manufacturing method of glass substrate for information recording medium |
| NL1008105C2 (en) * | 1998-01-23 | 1999-07-26 | Axxicon Moulds Eindhoven Bv | Injection mold. |
| JP2002079522A (en) * | 2000-06-23 | 2002-03-19 | Hitachi Maxell Ltd | Disc substrate molding die and resin molding die |
| JP4702201B2 (en) * | 2006-06-28 | 2011-06-15 | 東洋製罐株式会社 | Resin processing parts |
| DE102019216893A1 (en) * | 2019-10-31 | 2021-05-06 | Flabeg Deutschland Gmbh | Process for forming flat glass into a glass component and forming tool for use in the process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247692A (en) * | 1990-09-01 | 1992-03-11 | Atomic Energy Authority Uk | Preparing diamond-like carbon coatings involving a foundation layer; apparatus therefor |
| US5308707A (en) * | 1991-10-07 | 1994-05-03 | Nitruvid | Treatment process for depositing a layer of carbon in vapour phase on the surface of a metal article and article thus obtained |
| US5347887A (en) * | 1993-03-11 | 1994-09-20 | Microsurgical Techniques, Inc. | Composite cutting edge |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA968561A (en) * | 1970-11-27 | 1975-06-03 | Gerald E. Blair | Method for molding glass lenses |
| DE3533856A1 (en) * | 1985-09-23 | 1987-05-21 | Wilhelm Koenig | Apparatus for producing hard discs of glass |
| JPS6483529A (en) * | 1987-09-28 | 1989-03-29 | Hoya Corp | Production of glass forming mold |
| DE3800567A1 (en) * | 1988-01-12 | 1989-07-20 | Wilhelm Koenig | Compression mould for pressing hard glass diskettes |
| DE3808380A1 (en) * | 1988-03-12 | 1989-09-21 | Wilhelm Koenig | Process for embossing fixed programs on glass discs and apparatus for carrying out the process |
| JPH01301864A (en) * | 1988-05-31 | 1989-12-06 | Hoya Corp | Manufacture of glass forming die |
| US5026415A (en) * | 1988-08-16 | 1991-06-25 | Canon Kabushiki Kaisha | Mold with hydrogenated amorphous carbon film for molding an optical element |
| US5202156A (en) * | 1988-08-16 | 1993-04-13 | Canon Kabushiki Kaisha | Method of making an optical element mold with a hard carbon film |
| JPH0624991B2 (en) * | 1988-08-24 | 1994-04-06 | 松下電器産業株式会社 | Mold for press molding of optical glass element |
| US5380349A (en) * | 1988-12-07 | 1995-01-10 | Canon Kabushiki Kaisha | Mold having a diamond layer, for molding optical elements |
| JP2572438B2 (en) * | 1989-01-30 | 1997-01-16 | ホーヤ株式会社 | Manufacturing method of glass press mold |
| JP2837700B2 (en) * | 1989-08-23 | 1998-12-16 | ティーディーケイ株式会社 | Method for forming diamond-like thin film |
| US5112025A (en) * | 1990-02-22 | 1992-05-12 | Tdk Corporation | Molds having wear resistant release coatings |
| US5246198A (en) * | 1990-06-01 | 1993-09-21 | Canon Kabushiki Kaisha | Diamond crystal coated mold for forming optical elements |
| US5125945A (en) * | 1991-04-09 | 1992-06-30 | Corning Incorporated | Method and apparatus for parallel alignment of opposing mold surfaces by controlling the thermal expansion of the apparatus |
| JP3009761B2 (en) * | 1991-07-26 | 2000-02-14 | 日本タングステン株式会社 | Mold material for molding |
| JP3049132B2 (en) * | 1991-10-11 | 2000-06-05 | オリンパス光学工業株式会社 | Manufacturing method of optical element molding die and optical element molding die |
| JPH06320636A (en) * | 1993-05-12 | 1994-11-22 | Canon Inc | Production of mold for molding optical element |
| JPH0790553A (en) * | 1993-09-27 | 1995-04-04 | Shojiro Miyake | Sliding member and its production |
| JPH07109128A (en) * | 1993-10-12 | 1995-04-25 | Hoya Corp | Mold for molding glass and its production |
| US5458927A (en) * | 1995-03-08 | 1995-10-17 | General Motors Corporation | Process for the formation of wear- and scuff-resistant carbon coatings |
| GB2300424A (en) * | 1995-05-01 | 1996-11-06 | Kobe Steel Europ Ltd | Diamond growth on ion implanted surfaces |
-
1996
- 1996-08-27 CA CA002184206A patent/CA2184206C/en not_active Expired - Fee Related
- 1996-08-28 JP JP24399996A patent/JP3275091B2/en not_active Expired - Fee Related
- 1996-08-28 NL NL1003899A patent/NL1003899C2/en not_active IP Right Cessation
- 1996-08-28 JP JP8243998A patent/JP2909724B2/en not_active Expired - Fee Related
- 1996-08-28 IL IL11914496A patent/IL119144A0/en not_active IP Right Cessation
- 1996-08-28 AU AU64322/96A patent/AU718549B2/en not_active Ceased
- 1996-08-28 FR FR9610531A patent/FR2738236B1/en not_active Expired - Fee Related
- 1996-08-29 SG SG1996010532A patent/SG47172A1/en unknown
- 1996-08-29 MY MYPI96003599A patent/MY115041A/en unknown
- 1996-08-29 CN CN96113357A patent/CN1102470C/en not_active Expired - Fee Related
- 1996-08-29 GB GB9618034A patent/GB2304736B/en not_active Expired - Fee Related
- 1996-08-29 KR KR1019960036268A patent/KR100385257B1/en not_active Expired - Fee Related
- 1996-08-29 ZA ZA967329A patent/ZA967329B/en unknown
- 1996-08-29 DE DE19634974A patent/DE19634974A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247692A (en) * | 1990-09-01 | 1992-03-11 | Atomic Energy Authority Uk | Preparing diamond-like carbon coatings involving a foundation layer; apparatus therefor |
| US5308707A (en) * | 1991-10-07 | 1994-05-03 | Nitruvid | Treatment process for depositing a layer of carbon in vapour phase on the surface of a metal article and article thus obtained |
| US5347887A (en) * | 1993-03-11 | 1994-09-20 | Microsurgical Techniques, Inc. | Composite cutting edge |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2184206C (en) | 2002-10-08 |
| MY115041A (en) | 2003-03-31 |
| DE19634974A1 (en) | 1997-03-27 |
| SG47172A1 (en) | 1998-03-20 |
| JPH09183622A (en) | 1997-07-15 |
| JPH09194227A (en) | 1997-07-29 |
| ZA967329B (en) | 1997-03-04 |
| FR2738236B1 (en) | 1999-03-12 |
| FR2738236A1 (en) | 1997-03-07 |
| KR970010687A (en) | 1997-03-27 |
| GB2304736A (en) | 1997-03-26 |
| NL1003899A1 (en) | 1997-03-03 |
| GB9618034D0 (en) | 1996-10-09 |
| GB2304736B (en) | 1999-09-22 |
| CN1147983A (en) | 1997-04-23 |
| CA2184206A1 (en) | 1997-03-01 |
| NL1003899C2 (en) | 1998-02-12 |
| AU6432296A (en) | 1997-03-06 |
| IL119144A0 (en) | 1996-11-14 |
| CN1102470C (en) | 2003-03-05 |
| JP3275091B2 (en) | 2002-04-15 |
| JP2909724B2 (en) | 1999-06-23 |
| KR100385257B1 (en) | 2003-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5112025A (en) | Molds having wear resistant release coatings | |
| DE69426325D1 (en) | ABRASIVE ARTICLE MANUFACTURING PROCESS | |
| US20090212238A1 (en) | Apparatus for ion nitriding an aluminum alloy part and process employing such apparatus | |
| AU718549B2 (en) | Mold for pressing and molded glass substrate for computer me mory by using it | |
| US6314764B1 (en) | Method of manufacturing a 1-inch diameter glass substrate for a magnetic disk | |
| US6314763B1 (en) | Method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disk | |
| JP2002104832A (en) | Method of manufacturing forming tool for final shape and forming tool manufactured thereby | |
| US5902369A (en) | Carbon coated metallic mold for making a glass plate | |
| US5770294A (en) | Molded glass plates produced by mold with modified surface | |
| US4861437A (en) | Method of manfacturing a mould and providing it with a backing and mould manufactured according to the invention | |
| KR20010073195A (en) | A surface reforming method of a metal product | |
| JP2001269937A (en) | Method of manufacturing molding die for compound optical element | |
| JP2904672B2 (en) | Glass lens mold and method of manufacturing the same | |
| US20060026995A1 (en) | Molding core and method for making the same | |
| AU2002364794A8 (en) | Improved method for coating a support | |
| JP2003313046A (en) | Method for manufacturing glass optical element | |
| JPH0874032A (en) | Hard carbon film coated member and its production | |
| JPS56118318A (en) | Manufacture of resin molded coil | |
| JPS63193937A (en) | Annealing of molded resin article | |
| KR100190294B1 (en) | Surface treatment method of injection glass lens mold core and mold core manufactured by this method | |
| JP2000129440A (en) | Surface modification method for metal products | |
| JP3808920B2 (en) | Optical element mold | |
| JPS6114917A (en) | Manufacturing method of resin molded parts with metal layer | |
| KR100816535B1 (en) | Target for manufacturing organic electroluminescent device and method of manufacturing the target | |
| JPH03120638A (en) | Production of information recording disk |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| PC | Assignment registered |
Owner name: SAATEC ENGINEERING CORPORATION Free format text: FORMER OWNER WAS: YASUAKI SAKAMOTO |
|
| PC | Assignment registered |
Owner name: ZAATEC TECHNOLOGY INC. Free format text: FORMER OWNER WAS: SAATEC ENGINEERING CORPORATION |